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The bridge collapsed at a cost of 14.33 million, and there was not a single steel bar at the fracture? Whose reason is it?

The history of the Butou Bridge in Hezhou City, Guangxi!

At the end of 2009, the Butou Hejiang Bridge (i.e., Butou Bridge) with an investment of 14.33 million yuan began construction. After six years of construction, the bridge was completed and opened to traffic in July 2015, which greatly facilitated the transportation of people on and off the road in Butou Town.

The bridge collapsed at a cost of 14.33 million, and there was not a single steel bar at the fracture? Whose reason is it?

Butou Bridge is a reinforced concrete box arch bridge, the abutment is a slurry stone abutment, and the bridge deck is a prefabricated concrete hollow slab and reinforced concrete columns. This design was in line with technical specifications and requirements at the time and was designed to provide a stable and durable bridge structure.

The bridge collapsed at a cost of 14.33 million, and there was not a single steel bar at the fracture? Whose reason is it?

There was an accident in which the bridge deck collapsed at the Butou Bridge. The accident has attracted widespread attention and sparked discussions and questions about the quality of the bridge, construction supervision and post-maintenance.

The bridge collapsed at a cost of 14.33 million, and there was not a single steel bar at the fracture? Whose reason is it?

The bridge collapsed at a cost of 14.33 million, and there was not a single steel bar at the fracture? Whose reason is it?

The fracture of the Butou Bridge is not without a trace of steel bar. In fact, the entire bridge is prefabricated and does not have too much steel exposed. Precast parts refer to concrete products that are pre-fabricated in a factory according to architectural or engineering needs. After curing and hardening, these prefabricated parts can be transported directly to the construction site for installation and use, without the need for long concrete pours on site.

For infrastructure construction, the relevant departments usually carry out strict management and supervision to ensure the safety and quality of the project. If you have questions about bridge construction, it is advisable to consult a professional or relevant department.

The bridge collapsed at a cost of 14.33 million, and there was not a single steel bar at the fracture? Whose reason is it?

Design and structural reasons: The abutments of the Butou Bridge are designed as slurry stone abutments, which in some cases can be stabilized by balancing external forces with its own weight. But under certain conditions, such as soil pressure imbalances or drainage problems, this structure may be more susceptible to damage.

Although the structure of the U-shaped abutment is simple, the volume is large, and the fill soil in it is easy to accumulate water, and frost heave may occur after freezing, which in turn leads to cracks in the abutment structure. There is no support structure on both sides of the abutment, and if the drainage system is not perfect or cracks in the bridge deck are not detected in time, water may seep into the inside of the abutment, resulting in an increased risk of collapse.

The bridge collapsed at a cost of 14.33 million, and there was not a single steel bar at the fracture? Whose reason is it?

Environmental factors: The main reason for the collapse of the bridge deck is the deformation and instability of the earth pressure balance, which further leads to the failure of the bridge support. The most likely cause of the imbalance in soil pressure is rainfall, which is confirmed by weather conditions in Hezhou over the past six months. Guangxi is a humid and rainy province, and long-term rain erosion may lead to serious soil erosion above the abutment retaining wall, loss of support above the abutment, and eventually the collapse of the hollow position of the upper part of the abutment.

The bridge collapsed at a cost of 14.33 million, and there was not a single steel bar at the fracture? Whose reason is it?

Other factors: In addition to the above factors, there may be other unknown or unpredictable factors, such as unexpected impacts during the use of bridges, natural disasters, etc.

The bridge collapsed at a cost of 14.33 million, and there was not a single steel bar at the fracture? Whose reason is it?

Summary: The reasons for the collapse of the Butou Bridge and the absence of a single steel bar at the fracture may be multifaceted, including design structure, construction and material issues, environmental factors, and regulatory and acceptance issues. The Butou Bridge in Hezhou City, Guangxi Province is a bridge of great historical significance, and its construction has improved local traffic conditions and promoted economic and social development. However, the later bridge deck collapse accidents also remind us of the need for stricter quality control and regulatory measures in the construction and maintenance of bridges.

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